When the number of computers in existence and their processing capacity exceeds that of all mankind, a point of technological singularity is encountered. A massive economic and systematic crisis hits the entire world. Nobody knows the exact cause, and all solutions to fix it, are failing.Go to: http://store.steampowered.com/ and download STEAM client
Click “Install Steam” (from the upper right corner)
Install and start application, login with your Account name and Password (create one if you don’t have).
Please follow these instructions to activate a new retail purchase on Steam:
Launch Steam and log into your Steam account.
Click the Games Menu.
Choose Activate a Product on Steam…
Follow the onscreen instructions to complete the process.
After successful code verification go to the “MY GAMES” tab and start downloading.